main()
{
    int i,j,n=13;
    printf("N=");
    while(n>12)
    scanf("%d",&n);
    for(i=0;i<=n;i++)
    {
        for(j=0;j<12-i;j++)
        printf(" ");
        for(j=1;j<i+2;j++)
        printf("%6d",c(i,j));
        printf("\n");
    }
}
   
    int c(x,y) 
    int x,y;
    {   
        int z;
        if((y==1)||(y==x+1))
        return (1);
        z=c(x-1,y-1)+c(x-1,y);
        return(z);
    }
